at89c51re2-slsem ATMEL Corporation, at89c51re2-slsem Datasheet - Page 108

• Manufacturer Part Number: at89c51re2-slsem
• Description: At89c51re2 8-bit Flash Microcontroller
• Manufacturer: ATMEL Corporation

7663B–8051–03/07
Table 72. BDRCON_0 Register
BDRCON_0 - Baud Rate Control Register (9Bh)
Reset Value = XXX0 0000b
Not bit addressablef
Number
Bit
7
-
7
6
5
4
3
2
1
0
Mnemonic
RBCK_0
TBCK_0
BRR_0
SPD_0
SRC_0
Bit
6
-
-
-
-
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit
Reserved
The value read from this bit is indeterminate. Do not set this bit
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Baud Rate Run Control bit
Cleared to stop the internal Baud Rate Generator.
Set to start the internal Baud Rate Generator.
Transmission Baud rate Generator Selection bit for UART
Cleared to select Timer 1 or Timer 2 for the Baud Rate Generator.
Set to select internal Baud Rate Generator.
Reception Baud Rate Generator Selection bit for UART
Cleared to select Timer 1 or Timer 2 for the Baud Rate Generator.
Set to select internal Baud Rate Generator.
Baud Rate Speed Control bit for UART
Cleared to select the SLOW Baud Rate Generator.
Set to select the FAST Baud Rate Generator.
Baud Rate Source select bit in Mode 0 for UART
Cleared to select F
mode).
Set to select the internal Baud Rate Generator for UARTs in mode 0.
5
-
BRR_0
4
OSC
/12 as the Baud Rate Generator (F
TBCK_0
3
RBCK_0
2
SPD_0
CLK PERIPH
1
/6 in X2
SRC_0
0
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